#include<stdio.h>
#define TRUE 1
#define FALSE 0
#define SQ(x) (x)*(x) 
#define exchange(a,b){int t;t=a;a=b;b=t;}
#define LAG >
#define SMA <
#define EQ ==


int main(){
	int num=5;
	printf("%d\n",SQ(num));
	printf("%d\n",TRUE);
	int x=44;
	int y=55;
	exchange(x,y);
	printf("x=%d,y=%d\n",x,y);
  if(30 LAG 15)
			printf ("30>15");
	return 0;
}
